Clocks: Planet M Mirror Image
XAT 2016 · Quantitative Ability & Data Interpretation · Hard · Quantitative Ability
Each day on Planet M is 10 hours, each hour 60 minutes and each minute 40 seconds. The inhabitants of Planet M use 10 hour analog clock with an hour hand, a minute hand and a second hand. If one such clock shows 3 hours 42 minutes and 20 seconds in a mirror what will be the time in Planet M exactly after 5 minutes?
- A.
6 hours 18 minutes 20 seconds
- B.
6 hours 22 minutes 20 seconds
- C.
6 hours 23 minutes 20 seconds
- D.
7 hours 17 minutes 20 seconds
- E.
7 hours 23 minutes 20 seconds
B
Explanation
Total duration per day = 10 hours (0 to 10). Mirror image time = 3h 42m 20s. To find actual time, subtract from 10 hours = 9h 59m 40s: Adding 5 minutes = 6h 22m 20s.
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